Machine for manufacturing fishhooks



Sept. 15, 1936. P. A, NELSON 5 MACHINE FOR MANUFACTURING FISHHOOKS "Filed July 1e, 1935 6 Sheets-Sheet l .Hh, .l [It m W HI u w 1H. m. w W iw QE m| h wm. Ilm |l Il. mi Il uw Imag INVENTOR.

n /)ZJ'o/Y ATTORNEY.

sept. 15, 1936.

P. A` NELSON MACHINE FOR MANUFACTURING FISHHOOKS Filed July 16, 1935 6 Sheets-Sheet 2 .RII

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Hum. krumm 'r ATTORNEY.

1 NMX Sept. '15, 1936. P. A. NELSON 2,054,335

' MACHINE Foa MANUFACTURING FgsHHooKs Filed July 16, 1955 6 shets-srxeet 3` n mw m w 6 m MM H .Nw ,M .NN nw Q E Wnwwug N -MO Nw a L. :iup: w V.. ,w Q\J W \m q\ N 1 1 NL QQ w ha N 5% h Sgpt. l5, 1936.

illllllllll'llli/.l//Aa P. A. NELSON 2,054,335

MACHINE FOR MANUFACTURING FISHHOOKS Y 6 Sheets-Sheet 4 Filed July 16, 1955 Sept. l5, 1936. P A. NELSON 2,054,335

' MACHINE FOR MANUFACTURING FISHHOOKS v Filed July 16, 1955 e sheets-sheet 5 ATTORNEY.

INVENTOR. l

P. A. NELsoN 2,054,335

MACHINE FOR MANUFACTURING FISHHOOKS Filed July 16, 1935 6 Sheets-Sheet 6 Sept. l5, 1936.1

Patented Sept. 15, 1936 .certeza Pauli Ae. Nelson, Golden,

Color, assigner tofL Wriglit& MoGill- C'o., Denver, Colin, acorporationv oiColorado.

Application July. 16,.. 1935, Serial No. 31,559.

This invention relates to anautomatic machine for manufacturing fish hooks, and has for` its principal object thev provision of a machine of thisclfiaracter whicliwill be. entirely automatic. in' its operation, and which., will. automatically andcontinuously convert metallic wire=into completely iinished" sh hooks.

Another object of the invention is to provide an automatic machine.. which can be readily ad.- justed to form iish hooks of various types and. sizes without requiring major adjustments. infthe machine itself.

Other objects and advantages. reside in the de tail` construction of the. invention, which is. de

` signed for simplicity, economy., and efficiency'.V

These will become more apparent from` the fol.- lowing description.

In the followingv detailed. description of.l the invention reference is had to. the accompanying drawings which form a part hereof. Like num-- erals refer to like partsin. al1 viewsofthe drawings and throughout the. description.

In. the drawings: Fig..1"i's a.pl`an View of the Work. table of: the. improvedk sh hook machine..

Fig. 2I'i's a cross section through the. machine, taken onthe line 2--2Fig. 1..

Fig. 3 is a fragmentary section, taken on; theline 3--3, Fig. 1.

Fig. 4 is a similar. section taken on. the line 4--, Fig. 1. Y

Fig. 5 is a longitudinal section'tak'envon. thev line 5 5, Fig. 1i.

Fig. 6 is a detail horizontal..sectiomthroughthe- Y cutting die, taken on the line.. 6,-6,.Eig.. 5, illustrating the barb forming. knife i-n. the forming. position.

Fig. '7 isa detail'section, taken. on the line 1,-1.. Fig. 5.

Fig. 8.is an enlarged plan View. of the forming. portion illustrating.. the. former in. the open position.

Fig. 9 is a similar Viewillustratingthe. former. in the closed. position.

Fig. 10 is a detail.- longitudinal.sectionthrough the barb forming slide.-

Fig. 11.. isa detail edge View of the formerlook ing in the directionof the arrow DFig. .8..

Fig. 12 illustrates. a front and side. View of a.

completed hook formed on the machine..

Fig. 13 is. an enlarged. horizontal section: through the. grinding *wheel` trunnion..

Fig. 14, isa fronti View. of, thegrinding. wheel trunnion-h Fig. 1`5 is a plan view of the drive mechanism (CIE 29"-9) which-is.1ocated-belowI thel table top. Thisfview f is.--taken looking downwardly thereon asfthoughf. the table top were removed. v 4

The. invention.- comprises al. suitable workrtable I llfwhich maybe supported uponfany suitable supV 5 porting frame or other. structure (not shown); Alsteel. wire' ILy feeds into.v the table? L0. from areelJ or other: supply. The. wire. I-Ir is rst receivedfrom-'a first..y series; of vertically positioned straightening rollsf I'2v and; thence passes through aA second: similar series of# horizontal straightening. rolls.' I3r: The presf sureof f the rolls-.onthe wire can befminutelyand: accurately-- adjusted by means offarseries of pres.- sure screws Ma. These rollsserve to` remuyeanyfy kinks or bends.v from. the incoming Vwire* and. toA delivenit'. in as,perfectly'straight-condition: to the; machine.. The straightening rolls II andv Ilare: supported fromf brackets: and-S IBS respectively.;Y which:` are in; turnisecuredtto:a1.sliding' crosshead IIL,

ratchet wire clamp I5 is. also mounted on. the crossheadi If6. so. that. iti movesN withf theV y straighteningrolls. tov engageethe wire. when imow ing; forwardr ande release' thewire when movingerearwardt. The'. cross head.reciprocates.in.` al track lIfl'fl on the tablei ILU; The reciprocation isv imparted: by means of a; IBS wliioheXtendS-l downwardlyz'thrnugh a:.slot Illintile:tableV I Algripperzis providedito grip theafwi're II during a .part of the returmmovement' of' the clamp.u I8 sozasi to.preventzl the* withdrawing: of the `wire as'1 thetstraiglrtening'rollstravel rearwardlythereon.v This gripper-consists ofa fixe'dlower jaw` ZZ'witlt Whicrailgrppingileveri Il cooperates to:V griptlie' Wire. The gripping lever terminates# inv a1 cam-f rollerv 28.- "lhe gripping;levecisoperated:from*a sliding; carrnfZeprO-iecting upwardly froina lungi-s tudinally-movabie camsbar 24..

Lt.- is.Y necessary: during; the. operation'. off, thei40 machine'torwithdraw thewire Iilia predetemnined. v distance after itihas'- beenl moved inwardly-by.r the.: clamp: I5.v This is, accomplishedil byA mounting' theegrippen 2.I-`on; a-.second cross head1 ewhichi slides in the track; lil-,1;aheadfofithefcrosmhead |61- The second crossfhea'ds85fisaconstant1ypullert ping the wire II, and pushes the wire into the. v

. position to receive the cam roller 28 of the gripper on the return stroke.` The forward motion stopsV when the second cross head reachesk the broken line position A, Fig. 1, which is the extreme insertion point for the wire. The cross heads `then return and partially withdraw the wire until the cam roller of the gripper ridesupon the cam 23 to close the gripper on the wire. The second cross head then contacts the stop bar 29 and ceases to follow the first cross hea,d. This prevents further withdrawal of the Ywire and the first cross head pulls the straightening rolls rearward Vthereover to straighten the next section thereon. The distance the wire is withdrawn can be accurately preset by adjusting the stop bar 29 inthe clamp 86, and it is this distance which determines the length of the shank on the completed hook. V Y

Asthe returning first cross head approaches Ylits extreme outward position, the arm 21 will strike a return pin 30 on the slide bar 24 so as to move the latter outwardly to withdraw the cam 23 from beneath the roller 28 and allow the gripping lever 2| to open for another forward movement of the wire. j

'I'he extreme inwardV movement of the wire positionsthe inner extremity thereof opposite an angularlyplaced, eccentrically positioned, grinding Ywheel 3| which is both rotating and gyrating so as to grindan accurate point upon the angular cam slot 40 in a cam plate 4| secured a clamp block 81.

wire.. When the .gripper moves outward to the stop bar 25, it withdraws the Wire from the grinding wheel and positions it opposite the forming mechanism of the machine.

Theforming mechanism consists ofY alaterally positioned slide block 32 mounted between suitable guides 33 0n the table I0. `The slide block 32 is reciprocated from a downwardly extending stud V43 which extends through a slot |04 in the ,K1 table l0. The slide block carries a spring actuated-clamp bar 34 which is urged forwardly from the block by a compression spring 35. The eX- tremity of the clamp bar 34 is grooved and serves as a clamping member to clamp the wire against The slide block also carries a forming leverV 36 pivoted thereon at 31. VOne extremity of the-,forming lever terminates in'a hook-shaped former 38. The other extremity terminates in aqcam pin 39 which rides in an on one of the guides 33;

VThe former 38'cooperates with a hook-shaped forming Adie.,42 which is iixedlyr secured to the table As the slide block 32 moves inwardly Vtoward lthe Wire the push rod 34 will rst engage the wire and clamp it tightly against the clamp block 81, as sho-wn in Fig. 8. The former 38 Vwill then move against projecting extremity ofthe wire and bend it around the die 42 to i' a. substantially 90 bend, as shown in Fig.\9 At the completion of the bend, the cam pin 39 will enter the angle turn' of the cam slot 40 so as to swing the rearward extremity of the forming lever 36 to cause the hook shaped former to move inward around the hook shaped extremity on the die 42 to give the U shaped bend to the Y sh hook.

It isoften desirable that the hook have a slight This is accomplished by forming a lead groove 45 in the hooked extremity of the former 38. This receiving groove is inclined and is followed by the wire as it swings around the die to give it the desired offset bend. The extremity of the former is notched as shown at 45 to receive and prevent the Wire from slipping therefrom.

It is desirable that the pointed extremity of the hook be bent outwardly after it has cornpleted its hook-shape bend to properly shape and point the barb. This is accomplished by a iinal forming mechanism which is mounted on a second slide block 46 operated between guides 41 on the opposite side of the wire Il. The second former is actuated from a stud 48 extending .downwardly through a slot 49 in the table I0 and terminating in a cam roller 50. VThe stud moves the block 4-'5 inwardly toward the wire and a tension spring 5| draws it outwardly.

ing head 54 rigidly projecting therefrom. After v the wire has been given the U-shapedv bend around the die 42, the slide block 46 moves inwardly to cause the clamping bar 52 to force the barbed extremity into a shaping depression 88 in the die'42. While the hook is held in this position the slide block 46 moves still farther inwardly until the forming head 54 contacts the hook opposite the barb thereof to give the final shaping to that pointed extremity thereof, as shown in Fig. 9.

A vertical post 55 projects from the table |'0 to carry thecutting-oif mechanism. This mechanism consists of a vertically acting angle face cutting die 56 reciprocated through a connecting link 51 from a rocking lever 58. lever is operated from a connecting rod 59 extending to a hinge bracket 60 on the slide block 32. The lever 58 is pivoted on a pin 6| in a bracket arm 62 extending from the post 55.'

The cutting die 56 cooperates with a stationary shear block 63, the two cooperating faces being set at an acute `angle across the wire so that the wire is sheared to produce'a relatively sharp point on the incoming extremity. The rear extremities. however, of the preceding portion is cut off square by a cross knife 64 carried by the shearing die 56 so as to produce a fiat rear end on the hook section.

The barb is formed on the hook by means of a sharp barb knife 65 which adjustably projects from a barb slide 66 mounted between guides 61,l on the table l0 at an acute angle to the wire The barb slide 66 is constantly pulled rearwardly by means of a tension spring 68 and is moved forwardly by a stud 10 projecting through a slot 1| in the table top ing die 56 is closed, the barbing knife 65 moves forward to out orslice a pointed portion or barb from the side of the wire as shown in Fig. 8. Asthe shearing 'die opens, the barbing knife moves away to allow the sharpened barbed point topass to the grinding wheel 37|.

The grinding wheel 3| is carried on an angle shaft 12 mounted in self-aligning ball bearings 13 in a hollow rotating trunnion 14. The trunnion 14 is rotated in suitable bearings 11 from a At the time that the shearsprocket wheel 15 and the shaft 12 is rotated from a pulley 16. grinding wheel 3| is carried in a bearing plate 88 which can be laterally shifted `by means of a set screw 89 to properly position the grinding wheel with reference to the wire It can'be seen that with the shaft 12 rotating in relatively high The ball bearing adjacent theY actress..

speedrahd; theftrunnion 1-4 rotating). iii-,relativelyI` lowtspeed. the:A grinding wheel, 3|r will. be*l swung;

around.thepoint of the Wireon' a conical angle. su: as!l to` grind and4 sharpena: conical, point thereon.

uponY whichza pair-of.;plierflikeclamping jaws 1:9l

are mounteduponzapivot. pin 80. Thefclamping. jaws.-19. are` forced shut. at theirv outer extremities' so. asy tofrmly clamp-the Wire therebetween-durngthegrinding operation. by means or awedgeshaped-pin: 8|. extending from theextremity of a. bracket arm- 82= which in turn: is secured on a puslrrodfz, Thefpuslr. rod83-extends rearwardly toapoint.inztherpathof the `second--crosshead 85:. Af compression' spring.. 84. constantlyy holds the Wedge-pin.- &| inthe-fwithdrawnposition until the puslrrod; 83: is .forced forward by contact with the cross head 85. This contact is always: made at the' iina'l` movement. of the gripper 2| so, that the wireisA` always clamped atv the limit of its extreme inwardzmovement.. Assoon asthe gripperrretractszto withdraw the Wireit, releases the the first of which, 94'drives.a worm; gear 96 on the camshaft. 911;. The second,. 95; drives aV worm gears98f-on atcamzshaft 99. These shafts are journalled in thebottorn` of the table |0 vandr in suitable bearing bracketsA |00` mounted: thereunder;

The first shaft 9.1 carries a cam |0| provided witha face: cam track |02.and an edge cam |03. A.iollower:roll:l04 travels in the face; camtrack |02. This roll'y is-.secured'on'a reciprocating bar D'rwhichconnectsfat its extremity.r with the stud. 43 of the-slide; block 3.2 which reciprocatesthereforfinf consequence of the contour of'y the cam track. |02: A slot- |01. is provided in. thebar |05' to: allow it to move rela-tive. to the cam shaft 91. The stud.' 48 from the second slide block 4B projects through a.- slot Illv in the barn |05 and..

the-roller llfthereon is held-against the'carn |03. by-` the,V spring; 5|.

g. cam |08; This rolleriscarriedin aslide barv I5 in aslide #I6-on thefbottom ofthetable I0. The slide ba1'.|-|5. connects directly with the stud 10. offthebarbingslide 66. The latter, therefore, reciprocatesA in consequence ofthe contour of the Inr operation. the wire feeds. intofthel machine in.a.continuousseries of intermittent movements.. First. a. longY inward: strokewhichbrings the extremityV toA the grinding; Wheel. Where it pauses; Thencefa short rearward'y movement to theform- The. second slide block` |||5Y moves, thereforeL in consequence of= the contour ing'. and; cutting. off position ati which'. time the'-..

barb:l is formed inthe next;succeedingfhack.. The; rearward: movement determines the. length ofi thea Wire'in. the4 hook: This .can be accurately;A preset.' by.: adjustment of; the stop.v bar 2.9il and; an'. adjusting clamp; Z9. mounted on. the. straightening roll block |1.

On. certain types of hooks small; barbs: are formed on thehook shank for holdingthe baitin. place. thereon.. Such hooks can. be manufactured inthis'machi-neby the addition of an attachrxrent'v thereto.; Such an: attachment is shownapplied: to the.. machine in Eig. 1 only. It consists: of? ai'. knfeblock |18v carried in an angularly positioned slide memberV |2|` alongside of the path of thev Wirel Il? and. carrying oneI or more'y secondaryy barbing. knives. ||9. On thev opposite side of: thee wire a stationary anvil block.: |20 issuppOrted: bythe slide memberv |2I.. An armi. |21' connects the knife block. H2' with the barb slide 22a As the:v barb. slide limoves. forwardly to cut the` main hook barb, it forces theknfe block. l |8:f'or.e Wardly and the angularly positioned slide member |2| forces it toward the Wire until the sharp edges. of thebarbing knives l I9 clamp the wire against. the anvil blockto. cutithe bait barbs in thezhoole shank. The grinding wheel pulley 16. is driven. from a. flexible V-beltso that. it istfree towobble: as the bearing sleeve 14 rotates.

While a specific form of the improvement!` has been described'. and illustrated herein, itA is desired to be understood that the same may be varied within the scope of the. appended claims', without departing from. the spiritof' the invention.

Having thus described the invention, what. isf. claimed and desiredsecured by. Letters Patent l. A. machine for manufacturing fish hooksi from. a continuous wireV comprising: a formingf die positioned at the side of said wire;v aformerf moving laterally of" the line of:V travel off" said wire andi shaped. to bend the latter aboutl said'y die; cutting means for cutting saitli wire into sections; and means for intermittently feeding' said-'wire to said. forming die and said cutting means.

2; A3 machine for manufacturing. i'lsh hooks. from. a continuous Wire comprising: a. forming: diepositioned at the side of` said. wire.;A aformer moving laterally of the line of travel of said Wirel and. shaped to bend. the. latter: aboutsaid. die; cuttingmeans for cutting saidwireinto sections;Y a reciprocating. member.' adjacent said wire; andi agripper secured to:. sai'd reciprocating member. fori gripping said wire at: predetermined positions. of said reciprocating; member sozas lo-feed. said wire: to; said; forming: die;

3.. machine. for. manufacturing fish hooks. from atcontinuous wire comprising: a forming.. die positiened atthe. side; of said; wire; av former.v movingrlaterally of. thefline of. traveLof: saidwire". andi' shapedto bend the' latter.l about` said. die;v a reciprocatingimember adiacenti said, wire.;` a. ratchet-like clamp: projectingV from said reciproeating member to: grip. said Wire; and feed. it to" saidl forminggdie; as; said reciprocating member moves` in one' direction and release said Win'ewhen.` said membermoves; in. the: other direction..

4. A. machine for' manufacturing f fish, hooks: from a continuous. Wire comprising:` a; forming dief'positioned at: thesi'def of said wire.;v a former.y moving, laterally of the' line of; travel. ot said wirey and.A shaped' to bendrtheflatter about; said die;. reciprocating Amember,adj acenifsaidtwirex: ara-tch l et-like clamp projecting from said reciprocating member to grip said wire and feed it to said forming die as said reciprocating member moves in one direction and release said wire Ywhen said member moves in the other direction; and means for gripping and holding said wire asV said mem- VberY moves in the latter direction.

5. A machine for manufacturing fish hooks from a continuous Vwire comprising: a grinder for sharpening the extremity of said wire; a former for bending said wire to the desired hookshape; a shear for cutting said wire; feeding means for feeding the extremity of said wire to said grinder; withdrawing means for returning -Said wire to said former after grinding; and

means for actuating said former and said shear against said wire after it has been returned by said returning means.

6. A machine for manufacturing fish hooks :from a continuous wire; comprising a grinder for sharpeningithe extremity of said wire; a former forbending said wire to the desiredVhook-shape; an shear for cutting said wire; a reciprocating member adjacent said wire; a ratchet clamp actuated by said reciprocating member for feeding said wire to said grinder; and a gripper actuated by said reciprocating member for gripping and returning said wireto said former and said shear.

7. In a machine for manufacturing iish-hooks from a continuous wire, means for forming the required hook-shaped bend in said wire comprising: a hook-shaped die on one side of said wire; a. hook-shaped former normally positioned on the Y'other side of saidrwire; means for imparting a rst lateral movement to said former to bend said wire substantially 90 around the extremity of said die; and means for imparting an arcuate movement to said former to bend said wire substantially an additional 90 about the extremity of said die.

Y8.Y In a machinel for manufacturing fish-hooks from a continuous Wire, means for forming the required hook-shaped bend in said wire comprising: a hook-shaped die on one side of said wire; a hook-shaped former normally positioned on the other side of said wire; means for imparting a lateral movement to said former so as to cause the latter to bend said wire around said die; and

means for clamping said wire against said'die inv wire substantially an additional 90 about'the extremity of said die;Y and means for finally forming the point of the bent Wire.

hooks from a continuous wire, means for forming the required hook-shaped bend in said wire co-mprising a hook-shaped die on one side of said wire; a hook-shaped former normally positioned on the other side of said wire; means for imparting a first lateral movement to said formerV vto bend said wire substantially 90 around the extremity of said die; means for imparting an arcuate movement to said former to bend said wire. substantiallyan additional 90 about the extremity;

extremity of said die; a second former'movlng` in a direction opposite to said first former; and means for forcing said second former against therextremity of said Wire at'the completion of the second 90 bend.

11. In a machine for manufacturing shhooks from a continuous Wire, a grinder comprising: a rotatably mounted trunnion; a grind- Y means forrotating said grinding wheel shaft at a relatively high speed; means for rotating said Y trunnion at a relatively slow speed so that said grinding wheel will describe an orb-it about the axis of said trunnion; and means for feeding the extremity of said wire to said wheel on the axis ol said trunnion. f y

12. In a machine for manufacturing fish hooks from a continuous wire, a grinder comprising; a rotatably mounted trunnion; a grinding wheel shaft extending through said trunnion at an acute angle. to the axis ofthe latter so that one extremity of said shaft will beveccentric of the axis of said trunnion, and the other extremity substantially concentric Vtherewith; a grinding wheel mounted on the eccentric means kfor rotating Vsaid grindingwheel shaft at a relatively high speed;V means Y for rotating said trunnion at a relatively slow speed so that said grinding wheel will describe an orbit about the axis of said trunnion; means for feeding the extremity of 'said wire to said wheel on the axis of said trunnion;` and means for regulating Vthe degree of eccentricity of said grinding wheel shaft as desired. Y

13. In a machine for manufacturing fish hooks from a continuous wire, a grinder comprising: a rotatably mounted trunnion at an acute angle to the axis of the latter so that one extremity of said shaft will be eccentricV of the i axis of said trunnion, and the other extremity substantially concentric therewith; a grinding wheel mounted on the eccentric extremity;

means for rotating said grinding wheel shaft at a relatively high speed; means for rotating said trunnion at a relatively slow speed so that'said grinding wheel will describe an orbit about the axis of said trunnion;'and means for feeding'the extremity of said wire to said wheel on the axis of said trunnion; a clamping member for clamp-v ing said wire in positionagainst said grinding wheel; and meansvfor actuating said clamping member when said wire reaches said wheel.

i4. In a machine for manufacturing sh hooks from a continuous wire-means 4for cutting said wire into sections of a predetermined length and forming a point thereon comprising: l a

shear block in the path of said wire, said blackV having an acute. cutting edge positionedatl an angle across the incoming wire and a second 90 10. In a machine for manufacturing flshcutting edge positioned across the end of the cut section; and a lcutting die having similarly p0- sitioned cutting edgesv for cooperating with said block to cut a pointed angle cut on theincoming ting said wire into sections of a predetermined length and forming a point and a barb thereon comprising: a shear block inthe path of said` wire, said block having an acute cutting edge positioned at an angle across the incoming wire and a second 90 cutting edge positioned across the end of the out section; and a cutting die having similarly positioned cutting edges for cooperating with said block to cut a pointed angle cut on the incoming extremity and a square cut on the outgoing extremity; an angularly positioned barbing knife; and means for forcing said barbing knife against one side of the incoming extremity of said wire While said cutting die is closed thereon.

16. A machine for manufacturing fish hooks from a continuous wire comprising: means for intermittently feeding said Wire to said machine; a cutting die for forming a pointed extremity on said wire; a gyrating grinding wheel for grinding said pointed extremity; means for withdrawing said wire from said grinding Wheel after the grinding operation; a clamp for clamping said wire in the withdrawn position; a forming die positioned oppo-site the withdrawn position of said wire; a hook-shaped former; means for moving said former against said wire to bend the latter about said die; means for pivotally swinging said former so as to fold said Wire around said die; and means for cutting the bent wire section from said continuous Wire at the time of forming the pointed extremity on the incoming wire.

17. A machine for manufacturing iish hooks from a continuous wire comprising: means for intermittently feeding said wire to said machine; a cutting die for forming a pointed extremity on said wire; a gyrating grinding wheel for grinding said pointed extremity; means for withdrawing said wire from said grinding wheel after the grinding operation; a clamp for clamping said wire in the withdrawn position; a forming die positioned opposite the Withdrawn position of said wire; a hook-shaped former; means for moving said former against said wire to bend the latter about said die; means for pivotally swinging said former so as to fold said Wire around said die; means for cutting the bent Wire section from said continuous Wire at the time of forming the pointed extremity on the incoming wire; a barbing knife; and means for moving said barbing knife against the side of the Y 

